Automatic needle-disengaging and stop mechanism for sound-reproducing machines.



G. A. OPPENHEMER: UTOMATIG-NEEDLE DISENGAGING AND STO? EGEM-HSE S''EE IaT-Gi Lui APPLICATION FILED JAB. B9

Il 'lll UNITED sTArEs rATENr orEioE.`

GEORGE e. OPPENHEIMER, or NEW ROCHELLE, NEW YORK, AssIeNoa To LoUIs H.

NAYS, or CLEVELAND, 01-110.

AUTOMATIC NEEDLE-DISENGAGING AND STOP MECHANISM FR SGUND-REPRODUCNG MACHINES.

a section Iof the casing Application led January 29, 1908. Serial No.

To all 'whom 'it may concern:

.Be it known that I, Grenen A. OPPEN- HEIMER, .a citizen of the United States, and residing at New Rochelle, in the county of lVestcliester, State of New York, have invented certain new and useful Improvements in Automatic N eedleDisengaging and Stop Mechanisms for Sound-lteproducing Machines.

My invention relates to attachments lfor sound reproducing machines having revoluble horizontal tables upon which are placed the disk records.

The object of my invention is to provide a mechanical device which will automatically disengage and lift the reproducer needle or stylus from the face of the record and stop the rotation ofthe record upon the completion of the reproduction of the matter inscribed upon the-record, or at ,some other predetermined point in the rotation of the said record..

The accompanyin drawings illustrate my invention, in which s milar characters of reference indicate corresponding parts throughout the several 'views i Figure 1 is a plan viewofgthe engaging mechanism in position prior y o engaging a: lifting the reproducer needle. ."Fig. 2 f i a side elevation of the attachment having removed along the line A A in Fig. 1, and showing a. perspective view of the internal mechanism. Fig.- 3 shows a plan yview ofthe device in -po sition of engagement with' the projecting arm. Fig.. 4 is a side elevation of the attachment in position corresponding to Fig. 3, having a section ofthe casing removed along the line B B, and showing a perf spective view of the internal\, mechanism. Fig. 5 is a section through the 'line D D inA Fig. 4. Fig. G is a detailed vievvli'in elevation ofthe bracket and projecting arm Fig. `7 '5i is4 a section in elevation through the;l line G' C in Fig. 6. Fig. 8 is a detailed'sectional view" showing the end of the 4stop bolt engaging the projecting arm. Fig. 9 shows a detailed view of the stop bolt released` Fig.y 10 is a detailed rear elevation of the part shown in Fig. 49. Fig. 1l shows a detailed view ofthe stop bolt restrained. Fig. 1-2 is a Arear eleva Specification o'f Letters Patent;

Patented oet. i2, ieee. 413,295. i i

tion of the part shown in F ig. l.11. Fig. 13 is a sectional elevation through the center of thecasing, and shows a modified form of the top portion thereof.

The bottom plate (1) ,having an upwardly projecting rim (2) and a centrally located upright sleeve (I3), carries upon its face the inclined surfaces or abut'ments (4). The top plate (5), having a-downwardly projecting rim (6) and carrying the downwardly hanging supports (7) in which are journaled the ends of the rollers (8), is loosely 'mounted upon the upright sleeve (3). A bushing (9) is provided to steady the top plate and to prevent it from binding the sleeve. The bottom and top plates, with their respective rims, form a casing which serves to protect and conceal the internal mechanism. 'This portion of the device must be of sutlicient weight to allow it to face of the record so volved by it. When nient is made of metal or. other suitable niaterial, no extra weight is needed', but when the casing is made of some lighter material, as for instance, rubber or wood, a weight (10) surrounding the bushing (9) and fastened to` the top plate (5) may be provided. A' collar (11)-isfastened by means of a` rivet or other suitable `fastening to the topfof the sleeve (3) so as toprevent the two portions of the casing from being pulled apart.

The engaging mechanism, which is suitably fastened to theupper surface of the top plate (5), consists of a trigger (12) `pivoted in the support (13) and attached at the inner end through the connecting link (14) to the latch (15). The latch is adaptedto engage a recess (1(5),v in the stop bolt (17). The stop bolt has a notched head (18) and is suitably housed i-n the frame (19). -A spring (20), one end of which bears against --the bolt and the other end .against the housing provided to spring the bolt in position whe the latch is released through the movement of the trigger, as is shown in Figs. 9 to 12.

The bracket (21) is fastened to the arm (22) that carries the reproducer ornspundbox of the phonograph. For this purpose the bracket is supplied'at as tot be carried and reproperly adhere to the' the casing of the attachthe fastening end thereof, with a band (23) hinged at (24) and adapted. to be clampedby means of'a Vthumb screw or, other suitable fastening (25). The outer end of the bracket earries a. hollow horizontally disposed barrel (26), ih the ends of which is suitably' journaled a set lscrew (27), having a` knurled head (28).. lA nut (29), adapted to be moved in a horizontal direction by means of the screw (27), carries the downwardly projecting arm (30). The arm 30 carries a pointer (31) lwhichl indicates the movement of the same upon the .graduations (32) f placed upcn the outside of the barrel"(26).

The" manner in which my invention operates is as follows: Upon the revoluble horizontal table (33) of the sound reproducing machine, is placed the record (34). ()ver the central position ,.of the record, in such manner that the sleeve (3) fits over the spindle (35) ofthe phonograph, I pla'ce my attachment. The attachment willithen be in the position shown in Fig. 2, that is, with the rollers, carried by the top plate, bearing on the bottom part of the-inclined surfaces or abutments. The projecting arm (.30) is first set so as to engage the stop bolt at lthe proper point, which is preferably at .with the web of the projecting arm (30),

thereby preventing the top part of the attachment from further' rotation. The bottom plate, carrying the inclined surfaces or abutments, now rotates independently ofthe top plate which is held in engagement with the projecting arm (30), thereby causing the roller supports of the top plate to mount the inclined surfaces or abutments and vertically raise said top plate. The lower end of the projecting arm rests upon the up )er surface of-the top late and lsraised with it, thereby disengagmg and lifting theneedle from vthe face of the record, as shown in Fig. 4. `The ascending motion of the rollers is arrested by the pins (36) suitably-fastened in the top of they inclined surfaces. rlhe attachment beine' suitably weighted and beingl ri idly held by the reproducer arm of the p enograph, through the projection (30), acts as a. friction brake against fur-y ther rotation of the record and causes it to come to rest.

A band or strip of felt, rubber, or other suitable adhesivey material maybe applied to the bottom surface of the attachment so as to pro'-` vide a good frietion'bearing between the attac'hment and the record. l A

When the projection (30) is lifted from theA attachment and the record removed, the spring. (37), the ends of which are suitably fastened to the upper and lower parts of the attachment respectively, brings the parts of the attachment back toy their normal position as shown in Fig. This spring may be omitted and the upper part will fall back into its original position by ,reason of its weight.

The modified form ofthe casing shown in Fig. 13, has a raised lip (38) formed around the periphery of the upper 'surface of the 'top plate, which acts as a safeguard to prevent the end of' the projecting arm 30 from breaking away from engagement with the stop bolt.

The construct-ion and arrangement of the various parts may be modified and varied `from that illustrated in the accompanying drawings without departing from the essential features of this invention.

What Iclaim as my invention, and desire to secure by Letters Patent is:

l. A brake attachment for talking machines, comprising a member adapted to rest on`the record and to engage the sound-box or corresponding part of the machine, as such part approaches the center of the record, whereby further rotation of the latter is stopped.

2. A brake attachment for talking machines, comprisingv a member adaptedy to loosely rest on the record, said member having a friction surface for engaging with said record and being adapted to engage the sound-box or corresponding part of the machine, as such part approaches' the center of the record, whereby further rotation of the latter' is stopped.

' A brake attachment for talking machines, comprising a member adapted to rest on the record, and movable means borne by said member and adapted in one position 'thereon to engage the sound-box or corresponding part of said machine, as such part approaches the center of the record.

4. A brake attachment for .talking machines, comprising a. member vadapted to loosely rest on the record, said member having a friction surface for engagingwith said record, and means borne by said member and adapted to engage the sound-box or correspending part of said machine, as such part approaches the center of the record.Y

5. A brake attachment for talking machines, comprising a member adapted to loosely rest on the record, said-member having a friction surface for engaging with said record, and radially movable means borne by said member and adapted in extended position to engage the sound-box or corresponding part of said machine, as such part approaches the center of the record.

6. A brake attachment for .talking machines, comprising a member adapted to rest on the record, 'and a stop bolt reciprocally mounted on said member and adapted, when extended, to engage the sound-box or corresponding part of said machine, as such part approaches the center of the record.

7. A' brake attachment" for talking machines, comprising a member adapted to rest on the record, a stop bolt reciprocally mounted on said member and adapted, when extended, to engage the sound-box or corresponding part o said machine as such part approaches the center of the record, resilient means tending thus to extend said bolt, and a latch normally retaining the same in its inner' position, said latch being operable by engagement with such machine part to release said bolt.

8. A brake attachment for talking machines, comprising a member adapted to rest on the record, a stop bol-t reciprocally mounted on said member and adapted, when extended, to engage the sound-box or corresponding part of said machine as such part approaches the center ot the record, resilientI means tendingthus to extend said bolt, and a pivotal latch normally retaining the same in its inner position, said latch being opel'- able by engagement with such machine part to release said bolt.

9. In a. talking machine. the combination said record, of a member resting on said record, and a projection carried by such machine part and adapted to engage said member to stop the further rotation of the record. 10. In a talking machine, the combination with the record and sound-box or corresponding part of the machine cooperative with said record, of a member resting on said lrecord, and a projection carried by such machine part and adapted to engage. said member to stop the further rotation of the record, said .member and projection being adjustable relatively to each other independently of the movement of the latter with such machine part.

11. In a talking machine, the combination' with t-he record and sound-box or corresponding part of the machine cooperative with said record, of a member resting on said record, and a projection carried by such machine part and adjustable in the direction of movement of the same, said projection being adapted to engage said member to stop the further rot-ationf the record.

12. In a talking machine, the combination with the record and, sound-box or corresponding part ofthe machine cooperative with, said record, of a member resting on said record, a bracket carried by said machine part and-projecting in the direction of -movement of the same, and an arm adjustable along said bracketand adapted to engage said member to stop the further rota-- tion of the record.

13. Ina talking machinqthe combination with the record and sound-box or corresponding part of the machine cooperative with said record, of a member resting on said record, a bracket carried by said machine. part and carrying a barrel projecting in the direction of movement of such part, a screw within said barrel,'and a nut mounted on said 'screw so as to be adjustable along said barrel, said nut being provided with a downwardly projecting arm adapted to engage said member to stop the further rotation of the record.

MIA brake attachment for talking machines, comprising two relatively movable members adapted to rest on the record, movement of the one member upon the other serving to raise the same vfrom the record, and said movable member being adapted to engage the sound-box or corresponding part of said machine, as such part approaches the center of the record.

15. A brake attachment for talking machines, comprising two relatively movable men'ibers adapted to rest on the record, movement of the one member upon the other serving to raise the same from the record, and movable means borne by said last-named member and adapted in one position thereon to engage the sound-box or corresponding part of said machine, as Such part approaches the center of the record.

16.'A brake attachment for talking machines, comprising two relatively movable members adapted to vrest on the record, movement of the one member upon the other serving to raise the same'from the record,

and radially movable means borne by said -with, a member movable upon the inclined surface, and a projection carried bythe reproducerarm and adapted to engage said member so as to stop the further rotation of the record and raise lthe reproduce-r therefrom, substantially asdescribed.

18. In an attachment for sound reproducling machines, the combi-nation with the rotative record, of a device'provided .with an inclined surface arranged to be rotated therewith, a member movable upon the inclined surface and adapted to be carried therewith, and a projection carried by the reproducer arm and adapted to engage said member so as ,to stop the further rotation of the record,

and raise the reproducer therefrom, substantially as described.

1'9. In an attachment for sound repr`oducing machines, the combination with the rotative record, of a device provided with an inclined surface arranged to be rotated therewith, a stop bolt movable upon the inclined surface and adapted to be carried therewith,

and a .projection carried by the reproducer' arm and ada ted to engage said bolt so as to stop the vurther rotation of the record and raise the reproducer, substantially as described. y

20. In an attachment forl sound' reproducing machines, the coinbiationwith the rotative record, of a device provided with an inclined surface arranged to be rotated therewith, a bolt movable upon such inclined surfaceand adapted to be carried therewith, means for controlling the thrust ot' the stop bolt, and a projection adapted to be carried l by the reproducer arm and arranged to enlably mounted on the inclined surface, and a projection adapted to be carried by 'the reproducer arm and arranged to. engage and restrain said second member, substantially as described.

22. An attachment for sound reproducing machines, comprising a member having an inclined surface, a plate movably mounted on the inclined surface, a'bolt mounted upon said plate, means including a latch for controlling the thrust of the bolt, and a projection carried by the reproducer arm and arranged to enga ge said bolt so as to restrain further rotation of the plate, and cause, the same to mount the inclined surface, substantially as described.

23. Au attachment for sound reproducing machines, vcomprising a lower plate adapted to be carried by the record and formed'with an inclined surface, anupper plate movable upon such inclined surface, a bolt mounted -upon the upper plate, means including a latch for controlling the thrust of said bolt, and a projection adapted to be carried by the reproducer arm arranged to act upon the latch and engage the bolt so as to restrainthe further rotation of the upper plate and cause it to mount the inclined surface, thereby lifting the reproducer from the record, substantially as described.

24. In an attachment for sound reproducing machines, the combination of a bracket` adapted to be fastened to the reproducer arm and carrying at one end a barrel, a screw within said barrel, and a nut mounted upon said screw so as to be adjustable along said barrel, said nut having `a downwardly proljecting arm, substantially as described.

GEORGE A.' orrnnnnniea.

lllitnesses: LESTER Ll Drrrnxnonrnn, 'GERTRUDE K. BRENNAN. 

